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New Constraints on Chiral Gauge Theories

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arxiv hep-th/9904172 v1 pith:Z6LPAPIJ submitted 1999-04-26 hep-th hep-ph

Thomas Appelquist , Andrew Cohen , Martin Schmaltz , Robert Shrock This is my paper · ORCID
classification hep-thhep-ph
keywords inequalitytheorieschiraldegreesfindfreedomgaugenumber
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Recently, a new constraint on the structure of a wide class of strongly coupled field theories has been proposed. It takes the form of an inequality limiting the number of degrees of freedom in the infrared description of a theory to be no larger than the number of underlying, ultraviolet degrees of freedom. Here we apply this inequality to chiral gauge theories. For some models we find that it is always satisfied, while for others we find that the assumption of the validity of the inequality implies a strong additional restriction on the spectrum of massless composite particles.

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Cited by 1 Pith paper

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  1. Grand-unification Theory Atlas: Standard Model and Beyond

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A degree-of-freedom count applied to a new atlas of grand-unified gauge theories ranks SU(5) Georgi-Glashow first and SO(10) second for three generations.

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